EP 0240637 B1 19920923 - ELECTRICAL TECHNIQUE FOR CORRECTING BRIDGE TYPE MASS AIR FLOW RATE SENSOR ERRORS RESULTING FROM AMBIENT TEMPERATURE VARIATIONS
Title (en)
ELECTRICAL TECHNIQUE FOR CORRECTING BRIDGE TYPE MASS AIR FLOW RATE SENSOR ERRORS RESULTING FROM AMBIENT TEMPERATURE VARIATIONS
Publication
Application
Priority
US 85051186 A 19860411
Abstract (en)
[origin: EP0240637A1] A mass flow rate sensor (8,18,102,202) for providing an output signal (Vout) related to mass flow rate ( @) past the sensor (8,18,102,202) comprising first means (19,102,202) for generating a first mass flow rate-related signal (Vb), the first signal (Vb) containing temperature-related errors (e.g., T1-Ta, T1-Ts (Ta) ) and mass flow rate-related errors (MAS error), second means (R2) for generating a second signal (R2(Ta) ) providing temperature error correction (TCOMP), third means (R1,R4) for generating a third signal (Vc) providing mass flow rate ( @) error (MAS error) correction, and means (19;30;32;34;36;38;40;B+; in Fig. 18: 102;104;106;108;110;112; and in Fig. 22: 202;204; 206;208) for operatively coupling the first (19,102,202), second (R2) and third (R1,R4) means together to provide the output signal (Vout).
IPC 1-7
IPC 8 full level
G01F 1/68 (2006.01); G01F 1/696 (2006.01); G01F 1/698 (2006.01); G01F 15/04 (2006.01); G01R 17/12 (2006.01)
CPC (source: EP US)
G01F 1/6965 (2013.01 - EP US); G01F 1/698 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0240637 A1 19871014; EP 0240637 B1 19920923; DE 3686818 D1 19921029; JP S62245924 A 19871027; US 4807151 A 19890221
DOCDB simple family (application)
EP 86309547 A 19861208; DE 3686818 T 19861208; JP 28053886 A 19861125; US 85051186 A 19860411